81551142 (number)

81551142 is an even 8-digits composite number following 81551141 and preceding 81551143. In scientific notation, it is written as 8.1551142 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 24756480 positive integers (up to 81551142) that are relatively prime to 81551142.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred fifty-one thousand one hundred forty-two

Notation

Scientific notation 8.1551142 × 10^7
Engineering notation 8.1551142 × 10^6

Prime Factorization of 81551142

Prime Factorization 2 × 9 × 527 × 8597

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81551142
Product of the distinct prime numbers

The prime factorization of 81551142 is 2 × 9 × 527 × 8597. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 6, 7, 80, 794, 529, 3487, 6462, 49226, 97730, 539558, 671235, 2757403, 3536689, 40885217, 81693584, 969862545, 137492001, 3241837113, 2021551300

Basic calculations (n = 81551142)

Multiplication

n×y
n×2 163102284
n×3 244653426
n×4 326204568
n×5 407755710

Division

n÷y
n÷2 40775571
n÷3 27183714
n÷3 20387785.5
n÷5 16310228.4

Exponentiation

ny
n2 6650588761504164
n3 5.4236310847303E+23
n4 4.4230330874645E+31
n5 3.6070339938652E+39

Nth Root

y√n
2√n 9030.5670918276
3√n 433.65399237671
4√n 95.029295966179
5√n 38.219588728651

Divisors of 81551142

1, 2, 9, 18, 527, 1054, 4743, 8597, 9486, 17194, 77373, 154746, 4530619, 9061238, 40775571, 81551142

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81551141
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81551142 can be divided by 16 positive divisors. The sum of these divisors (counting 81551142) is 1, the average is 0.0625.

Base conversion 81551142

Base System Value
2 Binary 100110111000101111100100110
3 Ternary 12200110020010200
4 Quaternary 10313011330212
5 Quinary 131334114032
6 Senary 12031531330
8 Octal 467057446
10 Decimal 81551142
12 Duodecimal 23389b46
16 Hexadecimal 4dc5f26
20 Vigesimal 159dhh2
36 Base36 1cjx9i

Cryptographic Hash Functions

md5 3a724cf8bffd4bb6b83daa5ccb33c910
sha1 7b5ebc0e74839d3b482a26ae23c1de491912ccc8
sha256 30fc62b262d844e0732e08a944cec490af28806a6deeb87b2833993e42708ca3
sha512 58faeabc4419b8d61c996a0a15d8519b89761da27004767b2ec9bf12215875d9c112631cd0d6aeedcf41f8ebe553261757a845c22c2df9ae5892463ada1f7da0
ripemd-160 981e99ecca77489dc609cc5ae76c9f63809b24a8

81551142 as geometric shapes

Circle

Radius = n
Diameter 163102284
Circumference 512400937.19812
Area 2.0893440795188E+16

Sphere

Radius = n
Volume 2.2718452762093E+24
Surface area 8.3573763180753E+16
Circumference 512400937.19812

Square

Length = n
Perimeter 326204568
Area 6650588761504164
Diagonal 115330731.04341

Cube

Length = n
Surface area 39903532569024984
Volume 5.4236310847303E+23
Space diagonal 141250721.35926

Equilateral Triangle

Length = n
Perimeter 244653426
Area 2.8797894087929E+15
Altitude 70625360.679632

Triangular Pyramid

Length = n
Surface area 2.8797894087929E+15
Volume 6.3918105311116E+22
Height 38443577.014471